Thank you for A2A:
1 Ampere = 1 Coulomb/SecondCharge on 1 Electron = 1.6×10-19 Coulomb
Unitary method
If 1.6×10-19 Coulomb/Second (Ampere), = Current by 1 electron
then, 1 Coulomb / Second (Ampere) = 1 / (1.6 x 10^-19) electrons
6.25 x 1018 electrons