Can Fuji apples do well under these conditions:- https://en.climate-data.org/africa/kenya/trans-nzoia/kitale-919/#climate-graph Do i have the chill hours required my region? What is the recommended plant spacing for commercial growing?
I'm sorry, but it doesn't seem that it even approaches the chill temperature requirement, or chill hours.
The bottom of this article will recommend cultivars that do not have a strict chill requirement: https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-apple-trees.htm
This collection of articles will offer more information on growing apples: https://www.gardeningknowhow.com/category/edible/fruits/apples