Well you have to have lightning fingers, a facuets usually pays 1000-2000 satoshi hourly, and it takes 5-10 seconds to solve a captcha, so you can complete 514 faucets in an hour if you work nonstop. Thats 0.01 BTC/hour.
So in 8 hour of work, you can earn 0.08
BTC easily

Of course if your faucet list is big enough, check out this list for example and see what i`m talking about:
http://bestbitcoinfaucetz.blogspot.com/more like 360 captcha per hours(you need at least 10 secs, you should count the captcah solving plus the move to another one) which is only 360k satoshi(never heard of faucet of 2k per hour), therefore at best you can earn 0.03 in 8 hours
also there aren't so many faucets that pay you 1k+
so between 0.03 conservatively to 0.08 aggressively? That sounds very high....to the point where people in developing countries could do that as an actual job and get paid more than they normally would.
So you'd need a bunch of faucets on automatic rotation, which have enough time for the time constraint to be reset before the faucet is accessed again...?