Do I have to leave my passport in the embassy in these 5 working days?

dear sir,

i am going to phuket for one week trip, can i stop by bangkok leave my passport's copy to embassy office, then take my passport fly to phuket,{wothout leave my passport in the visa office} after 5 working days i will back to bongkok to get my visa. or do i have to leave my passport in the embassy in these 5 working days?