How much carbon a tree absorbs in a year will depend hugely on it's age and type.
Remembering that trees only convert carbon dioxide into their own mass it's more reasonable to look at the amount of carbon in a fully grown tree and take that as the carbon removed over it's lifetime
These people in Scotland work on 650Kg per tree
http://www.skakagrall.com/archives/000484co2_t ree_planting_faq.html
Now it get's complicated! - Trees are not permanant fixtures. If you chop it down and make furniture that'll be used and in say 50-100 years the funiture will no longer be used, will probably be burned and the carbon goes back into the atmosphere.
Worse still deciduous trees make leaves which drop and rot. That makes Methane which is 60 times worse than carbon dioxide as a greenhouse gas. Same if the tree rots.
You might even say "Save the planet - kill a tree"