Well. If you made the half cake from a box then do and estimate for about half the time for a whole cake. I LOVE baking.
It varies greatly. Some are small, some are larger. Typically, most are about 9 inches by 13 inches, and 2 inches deep. Any variation within 2 or 3 inches of this is considered about "average".
A full sheet cake pan measures 16" x 24" x 3"
Half of A4 is A5.
About 16 For a serving size of a 2"x2" piece Full Sheet: approx. 96 1/2 Sheet: approx. 49 1/4 Sheet: approx. 24 For a serving size of a 2"x3" piece Full Sheet: approx. 64 1/2 Sheet: approx. 32 1/4 Sheet: approx. 16
Figure on a half-sheet pan; around 18" by 13". Or you could use two quarter-sheet pans (9x13) and combine them; this may work better in a home oven. Quarter-sheets are convenient, because they're the "standard size" for home pans, and they're the size pan that boxes of cake mix are designed for.
Depending on the size of the pieces you cut it serves 15-20
The International Standard for paper sizes defines A0 as a sheet of paper that has an area of 1 metre2 and whose length is sqrt(2) times its width. So A0 is approx 841mm*1.189mm.A1 is the size of an A0 sheet folded in half lengthwise: 595mm * 841mmA2 is the size of an A1 sheet folded in half lengthwise: 420mm * 595mmA3 is the size of an A2 sheet folded in half lengthwise: 297mm * 420mmA4 is the size of an A3 sheet folded in half lengthwise: 210mm * 297mmThe size of an A4 sheet is 0.0625 metre2 or 2-4metre2.If you took 2x sheets of size Ax you would have 1 sq metre of paper.
Okay so here you go! There are approximately 4-5 cups of batter in one cake mix. For a half of a sheet cake, I use 3 cake mixes, so for a full, that's 6. You will have a little bit left over too.
Typically a full sheet cake pan is 18"x24" and will serve 108 2"x2"servings. This size pan, however, will not fit in a standard oven so manufacturers have created other sizes that are still referred to as "full-sheet." Though the math really doesn't work out: 1/4 sheet pans are 9"x13" 1/2 sheet pans are 12"x 18" Full sheet pans are 18"x24"
A 15 by 11 inch cake pan will make a sheet cake. This size of cake should serve at least 60 people depending on the size of the pieces that are cut. Smaller pieces may serve up to 90.
Two - A sheet of A4 paper is exactly half the size of a sheet of A3.