An emf source with = 120 V, a resistor with R = 80.0 Ω, and a capacitor with C = 4.00 µ...

An emf source with = 120 V, a resistor with R = 80.0 Ω, and a capacitor with C = 4.00 µF are connected in series. As the capacitor charges, when the current in the resistor is 0.900 A, what is the magnitude of the charge on each plate of the capacitor?