SERVING AND STORAGE CONTAINER Field of the Invention This invention relates to a serving and storage container. More particularly the invention relates to a serving and storage container made from a foldable blank that can 5 be used as a support for food while it is consumed and also as a receptacle for storing surplus food. Background of the Invention Conventional food containers that are formed from a substantially flat blank, typically made from cardboard, are folded into a three-dimensional container having a 10 lid, a base and side portions so as to store food such as cakes, pies and pizzas. In order to consume such food, after it has been cut into pieces, the consumer would either use plates (sometimes with the use of a utensil) or their hands in order to support the food as they eat it. Where non-disposable plates are used to consume food away from a home or restaurant, this creates an inconvenience for the consumers as plates have to be packed 15 and taken to the particular location and then, after the food is consumed, the plates need to be returned and washed. Where disposable plates are used, they initially need to be taken with the consumer and then disposed of after use. This can be inconvenient and produces excess waste. Where plates are not provided, the consumers generally use their hands to support 20 the food and this is not particularly easy when dealing with hot and potentially "floppy" foods such as pies or pizzas. There is therefore a need to provide a convenient support for such food where no plates are available. Where food is left over and not consumed, and the users wish to consume this surplus food at a later time, the food is generally stored in a fridge in the original box 25 provided. Such boxes can be bulky and take up a lot of space in the fridge and typical pizza boxes are too large to fit into some bridges. Therefore the user will need to store their food on a plate or another container and then provide plastic wrapping over the top in order to keep it fresh. This uses extra time, cost and burden on the user in having to store and keep fresh the left over food. Furthermore, the conventional pizza boxes are 5 generally difficult to dispose of due to their size. The user will either have to squash or crush the box or rip it into smaller pieces in order to place the remains of the box into the bin. There is therefore a need to provide easier storage of left over food items, a way of supporting food as it is consumed where plates are not used and to provide for easy 10 disposal of a container once it is no longer required. The above references to and descriptions of prior proposals or products are not intended to be, and are not to be construed as, statements or admissions of common general knowledge in the art in Australia. Summary of the Invention 15 According to a first aspect of the invention, there is provided a serving and storage container made from a blank including: a lid portion; a base portion on which food is able to be positioned; each of the lid portion and base portion having a pair of side walls; 20 wherein the lid portion is hingedly connected to the base portion via a rear wall enabling opening and closing of the container; wherein the lid portion is detachable from the base portion and has a series of score lines to form separate support segments for supporting items of food; wherein further the base portion is foldable about fold lines to form a 25 substantially rectangular prism-shaped container for storing surplus items of the food, the 2 rectangular prism-shaped container having a lid section, base section and rear wall formed from the base portion of the serving and storage container. According to a second aspect of the invention, there is provided a serving and storage container made from a blank including: s a lid portion including a pair of side walls and a front wall; a base portion including a pair of side walls and a front wall; a rear wall hingedly connecting the lid portion and the base portion; wherein the lid portion is foldable to form an enclosed space in which food is stored, the enclosed space bounded by the lid portion and the base portion including each 10 of the side walls, the rear wall, each of the front walls of the lid portion and the base portion; wherein further the lid portion is detachable from the base portion and the lid portion has a series of score lines to form separate support segments for supporting items of the food; and 15 wherein further the base portion is foldable about fold lines to form a substantially rectangular prism-shaped container for storing surplus items of the rood, the rectangular prism-shaped container having a lid section and base section formed from the base portion of the serving and storage container. The lid section of the rectangular prism-shaped container may be partly formed 20 by the rear wall. A portion of the side walls of the base portion can be used to form side walls of the rectangular prism-shaped container. A pair of fold lines may be provided in the base portion extending across the base portion between each side wall thereof, the pair of fold lines preferably being used to fonm a rear wall of the rectangular prism shaped container. 3 The front wall of the base portion and a section of the base portion may be used to form a front wall of the rectangular prism-shaped container. A tongue referably protrudes from the base portion and is engageable with a slot in a top ledge of the front wall of the rectangular prism-shaped container in order to close the lid section. 5 According to a third aspect of the invention, there is provided a method of forming a further container from a serving and storage container for storing surplus food, wherein the serving and storage container is formed from a blank having a lid portion, a base portion with each of the lid portion and base portion having a pair of side walls, the lid portion being hingedly connected to the base portion via a rear wall enabling opening 10 and closing of the serving and storage container, the method including the steps of: detaching the lid portion from the base portion; removing a part of each side wall of the base portion in order to form substantially upstanding side walls of the further container; forming a lid section and a rear wall of the further container by folding the base 15 portion over two fold lines, thereby creating a base section; forming a front wall of the further container from the base portion such that the front wall is substantially upstanding from the base section; and securing the lid section to the front wall to form the further container as a substantially rectangular prism-shaped container. 20 The lid portion preferably has a series of score lines whereupon tearing the score lines separate support segments for supporting items of food are formed. Brief Description of the Drawings A preferred embodiment of the invention will hereinafter be described by way of example only, with reference to the drawings in which: 4 Figure 1 is a plan view of a blank used to form a serving and storage container in accordance with an embodiment of the invention; Figure 2 is a plan view of a lid portion of the blank of Figure 1 detached from a base portion of the container; 5 Figure 3 is a plan view of a base portion of the blank of Figure 1 used to form a further smaller container for storage of surplus food items; Figure 4 is a perspective view showing the lid portion of Figure 2 separated into separate support segments and the base portion having side walls folded into an upright position; 10 Figure 5 is a perspective view of the base portion of Figure 4; Figure 6 is a perspective view similar to Figure 5 with a portion of the side walls removed; Figure 7 is a perspective view of the further container with its respective lid section shown in an open position; 15 Figure 8 is a perspective view of the further container in a nearly closed position; and Figure 9 is a perspective view of the further container shown in a closed position. Detailed Description of the Preferred Embodiment Referring to Figure 1 there is a shown a blank 10 used to Form a serving and 20 storage container. The blank 10 includes a lid portion 12 and a base portion 14. The lid portion 12 is detachable from the base portion 14 along a score line or perforation line 16. Each of the lid portion 12 and base portion 14 share a back wall 18 which is formed when the blank 10 is folded into the three-dimensional serving and storage container. The lid portion 12 has a front wall 20 and side walls 22 and 24. The base portion 14 has 25 a front wall 26 and side walls 28 and 30. 5 In order to form a conventional storage container, side walls 22, 24 and front wall 20 are folded upwardly (or out of the plane of the page) as are side walls 28, 30 and front wall 26. The front wall 26 may be folded along line 32. In order to fold the blank 10 into the conventional storage container, portions 34 and 36 may be cut out and removed 5 or otherwise folded inwardly so that they are positioned on or about fold line 38. The lid portion 12 is folded about line 16 and then the back wall 18 is folded about line 38 so that the shared back wall 18 is perpendicular to the plane of the base portion 14. Similarly sections 40 and 45 that form part of the front wall 26 may be folded inwardly such that they are positioned on or about the fold line 32 and co-located with the front io wall 26. The lid portion 12 is simply closed against the side walls 28 and 30 and front wall 26 so that front wall 20 of the lid portion 12 fits inside or outside the upright front wall 26 of the base portion 14 and side walls 22 and 24 respectively fit inside or outside side walls 28 and 30 of base portion 14. Referring to Figure 2 there is shown the lid portion 12 detached from the base 15 portion 14 and having perforated or score lines 41 and 43 marked therein. Score line 41 extends between and is substantially parallel to score line 16 and Fold line 23. Score line 43 extends between and is substantially parallel to fold lines 21 and 25. Each of the score lines 41 and 43 separate the lid portion 12 into four substantially equal support segments 42, 44, 46 and 48. By tearing along the lines 41 and 43 the four segments 42 to 20 48 can serve as support plates for items of food to be used by consumers of the food. Once the support segments 42 to 48 are no longer needed they can be discarded in bins. Referring to Figure 3 there is shown the separated base portion 14. In forming a smaller further storage container 70, for storing surplus food, sections 34 and 36 are removed and sections 28A and 30A of the side walls 28 and 30 are also removed (shown 25 by the dotted lines in Figure 3). As mentioned previously sections 40 and 45 are folded 6 inwardly. Front wall 26 and panel 62 are folded into a position such that they abut each other and are normal to the plane of the page so that they form. a reinforced front wall. Slot 52 is then positioned on a top ledge 53 of this reinforced wall. This is more clearly shown in Figures 4, 5 and 6. The remaining side walls 28 and 30 are folded respectively 5 about lines 61. and 63 to be formed in a substantially upright or normal position. The back wall 18 and portion 68 form the top of the further container 70, which is folded about line 54. Thereafter section 66, which will form the back wall of the container 70, is folded about fold line 56. The configuration of the further container 70 is shown in Figure 7. It is to be noted that front wall 26 is folded about fold line 51such that front 10 wall 26 is positioned inside and adjacent to section 62 after section 62 has been folded about fold line 59. Thus front wall 26 and section 62 are substantially normal to the plane of base section 64. Tab portions 65 and 67 fit into score marks or slots 58 and 60 respectively in order to provide structural integrity and keep the front wall 26 and section 62 in place together. 15 Referring to Figure 8 in order to close the new container 70, after left over or surplus food portions have been inserted into the container 70, it is a simple matter of locating tongue 50 into slot 52 in order to close the container, which is as shown as a substantially rectangular-shaped prism in Figure 9. The present invention therefore provides a number of support segments to act as 20 plates created from a lid portion of the container blank 10. This saves the necessity to use existing plates and also the need to wash those plates after use. Instead the support segments 42 to 48 can simply be discarded after use. The base portion of the container blank 10 can also advantageously be formed into a further storage container for storage of any surplus food. The reduced size of the further container is conveniently able to be 25 stored in a refrigerator without taking up much space. 7 It is to be understood that various alterations, modifications and/or additions may be made to the features of the preferred embodiments ofthe invention as herein described without departing from the spirit and scope of the invention. 8