Please at least get this much right: replicating your brain chemistry will not bring you back to life because, as your question implies, you would be dead at the time. Replicating your brain chemistry at that moment would only make a duplicate dead person that looks like Jabba.Replicating my brain chemistry would not bring the same me back to life.
Replicating your brain chemistry when you were alive would make a duplicate live person named Jabba who is indistinguishably you (except for location or clothes or unique marks, like a "Duplicate" scrawled across your forehead in Magicmarker by the experimenter to help keep track). The duplicate would have your sense of self, your memories, and think like you, completely.