Welcome to the forum! There are a lot of great people here willing to lend a hand anytime. Often using the search feature (in the toolbar at the top of every page) will lead you to the answers you're looking for. If not, feel free to post a question in the appropriate area.
Please take a moment to view the information linked below my signature to get the most out of your iPad as well as our forum.
Regarding your question, often restarting or resetting the iPad can solve most issues. To restart the iPad hold down the power switch (outside edge) by itself until the red slider appears, turn it off by sliding the switch and then hold down the power switch until the Apple logo appears.
Resetting the iPad should be reserved for a non-responsive unit as it addresses other activity but if restarting doesn't do it you can hold down both the power and home buttons until the slider appears, turn it off and then back on.
More here:
iPhone, iPad, iPod touch: Turning off and on (restarting) and resetting
If that doesn't work, try deleting your current iPad backup, it may be corrupt. Without connecting your iPad, open iTunes, open Preferences, click on "Devices" and delete your iPad's backup. Reconnect your iPad and let it backup/synchronize. Then try the update again. And if that doesn't work, here are some other options:
iPad: Unable to update or restore
Others may have some suggestions as well. Be sure to post your experiences!
Welcome again and enjoy!