A multi$-$layer capacitor is to be designed using a relaxor ferroelectric formulation based on lead magnesium niobate $($PMN$).$ The apparent dielectric constant of the material is $20,000.$ Calculate the capacitance $($in $$F$)$ of a multilayer capacitor consisting of twenty layers connected in parallel using Ni electrodes. The area of the capacitor is $19$ mm $19$ mm$,$ and the thickness of each layer is $29$m$.$

no idea how to do this, please explain step by step