How Exactly Current Flow Through a Capacitor?

Capacitors behaving as an open circuits, How can we understand the concept of the Electrons flowing through a capacitors.

Answer

See EEVblog #486 – Does Current Flow Through A Capacitor?

Electrons do not leap from one capacitor plate to the other but whilst the capacitor is charging or discharging as many electrons leave one terminal as arrive at the other, they are not the same electrons but for all practical purposes you can say that changing currents flow through a capacitor.