i want to use the hersheys chocolate cake recipe but it says it makes two 9 inch rounds and i need to make two 10 inch rounds, can i still use the same amount of ingreadients or do i need to scale the recipe to make the 10inc rounds and if i do how would i do that? 

ps need to make this cake tonight so a fast response would be a great help thanks!

2 9" layers (63.6 x 2) = 127 square inches 

2 10" layers (78.5 x 2 ) = 157 square inches which is 25% more for the same depth.  If you make 1.5 times the recipe, you will have plenty for 2 10" pans and a little left over for a smaller layer or cupcakes.  

If you use your recipe for 2 9" pans in 2 10" pans,  it will be 75% as tall as what you get in the 9" pan.  

HTH