how long it will take me to get a chinese visa and the procedure

The transportation time of the air ticket depends on which type of post your friend uses, air or land? Actually, if your firend buys the tickets with your passport number, no need to post the paper tickets to you. You may just change the boarding card use your passport directly. For the visa application, you may just ask your friend to email you a photocopy of the air ticket.

As the procedure of applying for a China visa, it usually takes 4 working days if you submit all the requried documents. You may just go to the China Embassy in Ghana to submit your application dorectly.