In your experience, will a 6in, 8in, and 10in tiered cake be enough for 68 adults for a birthday party? I don't want to go by Wilton sizes because those are for wedding cakes and wedding slices are smaller than normal.
how many layers in each tier? are your friends/family big cake eaters like mine are? LOL I would say that if each tier were 3 layers, then yes that would be enough, but that is gearing it towards my munch mouth family.