In electromagnetism, charge density is a measure of electric charge is the amount of electric charge per unit length, surface area, or volume, called the linear, surface, or volume charge density, respectively. The respective SI units are C⋅m, C⋅m or C⋅m.
Can we infer the following?
electromagnetism has to do with surface area

Pick your answer from: +Yes. +It's impossible to say. +No.
The answer is:
Yes