Hi, i am new in this business, I got an order for a cake serving 50 persons, but they want it to be a single round tier, i have done 50 servings but in two tiers, what do you recommend ? Would that be a 12 inch round two layer cake? Would that be enough to feed 50 persons, thanks in advance!

Depends on the servings you price at. Do you do say price off the the Wilton Wedding servings? That would be a cake 4" high and  2 2" cake layers with 1 layer filing  (although i do a 4" high cake with 4 1" layers and 3 layers of frosting). Then a 10" Square would serve 50 serving the standard 1" x 2" x 4" If you go round, that would be about 38 for a 10" round and 56 for a 12" round.

I'd do a 12" round and tell them to cut it 1"x2" by height of the cake.

Thanks a lot costumeczar! Thats exactly what i will do!