4x8 RAM sticks compatible with i7-8700
4x8 RAM sticks compatible with i7-8700
It would be 2 stick per channel, there's nothing stopping you.
You won't have much space left for bigger memory upgrades because all slots will be filled. It's also tougher to push the RAM clock speed as you add more sticks, though XMP should still function well given the strong IMC in the i7 8700.