The revised Artificer in Unearthed Arcana gets extra attack from its Arcane Armament feature (pg 5):
Starting at 5th level, you can attack twice, rather than once, whenever you take the Attack action on your turn, but one of the attacks must be made with a magic weapon, the magic of which you use to propel the attack.
The Artillerist subclass allows the Artificer to apply a cantrip to a wand through the Wand Prototype feature (pg 8):
By 6th level, you now regularly experiment with channeling different types of magic through wands. Whenever you finish a long rest and your woodcarver’s tools are with you, you can touch a nonmagical, wooden wand and turn it into a magic item. When you do so, you invest it with one artificer cantrip of your choice—even one you don’t know—that has a casting time of 1 action. As an action, you can cause the magic wand to produce the cantrip, using your spellcasting ability modifier (other creatures are unable to use the wand’s magic). The wand loses this magic when you finish your next long rest.
Any damage roll you make for a cantrip in the wand gains a bonus equal to your Intelligence modifier (minimum of +1).
When you reach 14th level in this class, you can invest the wand with two cantrips at the end of a long rest.
How does Arcane Armament interact with the Artillerist Artificer's Wand Prototype feature? Can you attack twice with the wand cantrip?