Calculate the area the parallel plates of such a capacitor

Question

A large capacitance of 1.67 mF is needed for a certain application.

(a) Calculate the area the parallel plates of such a capacitor must have if they are separated by 4.56 µm of Teflon, which has a dielectric constant of 2.1.

(b) What is the maximum voltage that can be applied if the dielectric strength for Teflon is  60 ? 10⁶ V/mV

(c) Find the maximum charge that can be stored. C

(d) Calculate the volume of Teflon alone in the capacitor. m³