Solve the all parts of given question:
Question: The plates of a spherical capacitor have radii 43.7 mm and 45.5 mm.
Part A: Calculate the capacitance in picofarads.
Part B: What must be the plate area in square centimeters of a parallel-plate capacitor with the same plate separation and capacitance?
Could someone please show me the work and explain how to get the answer.