1. CE code is linked to the service account so any items redeemd via any platform will be accessible by / delivered by moogle mail to all characters on all platforms (PC / PS3 / PS4) attached to the same service account.

2. No, it's not separate - in the PS3 CE box is the voucher with 4-4-4 redeem code which needs to be redeem via PS3 / PSN, then you need to install and run the game and link your PSN account with the SE Service account to which you plan to attach the CE items.