The diameter of an 8-inch cake is about 20 cm, which is equivalent to two pounds if measured by weight unit, which is about 900 grams. If calculated by the measurement method of ordinary people, it is 1 kg 8 Liang, which can be eaten by 8- 10 people.

First of all, we need to consider one factor: individual food intake. Everyone eats differently, and some people may eat less than others. Therefore, an 8-inch cake may be suitable for 8- 10 people, but this is not absolute.

Secondly, we need to consider another factor: the type and composition of the cake. Different cake types and ingredients have an effect on the size. For example, some cakes may contain more cream or chocolate, which will make the cake bigger. Therefore, we need to judge how many people are suitable for eating according to the specific cake types and ingredients.

Finally, we need to consider an important factor: occasions and activities. For example, if this cake is used for a large party or wedding, then a bigger cake may be needed to meet the needs of more people. If it is a small family gathering or personal celebration, then an 8-inch cake may be enough.