2.5mA
10kΩ
1µF
5µF
2V
10kΩ

vc(0-) = -25 V ; ic(0+) = -2.5 mA
vc(∞) = -2 V ; ic(∞) = 0 mA
τ = 60 ms

vc(t) = -2 - 23e-t/0.06 [V] ; t ≥ 0
time for vc to reach 0V: never

ic(t) = -25 - 2.5e-t/0.06 [V] ; t ≥ 0
time for ic to reach 0A: never, but 300ms is close