Heart shaped cakes

Hi Jodie
Im not sure about what do need to know exactly but I give you this link

Butter Cake this is for a 12" heart Shape (aprox 7 8 cups of batter)
For a heart cake 8" you need 3.5 cups of batter
for 10 " you need 3.5 cup

“Guide or Reference ":http://www.wilton.com/cakes/making-cakes/baking-party-cake-2-inch-pans.cfm

I hop help you…