Can a baha'i worship Jesus Christ?

Answer 1

Not only son of God, but also God, in a certain sense. Bahai scripture says (among many other verses):

"Remind them of these words and say unto them: 'Verily did the Pharisees rise up against Messiah, ... because He had claimed to be Almighty God, the sovereign Lord of all, and told them, 'I am God's Son, and verily in the inmost being of His only Son, His mighty Ward, clearly revealed with all His attributes, all His perfections, standeth the Father.' This, they said, was open blasphemy and slander against the Lord according to the clear and irrefutable texts of the Old Testament. Therefore they passed the sentence upon Him ... This is the meaning of the Messiah's words, that the Father is in the Son. [1 John 14:11] Dost thou not see that should a stainless mirror proclaim, 'Verily is the sun ashine within me, together with all its qualities, tokens and signs', such an utterance by such a mirror would be neither deceptive nor false? ...

(Selections from the Writings of Abdu'l-Baha, pp. 39-42) [see link below]

and today:

… the breezes of Christ are still blowing; His light is still shining; His melody is still resounding; … and it is the same with those souls who are under His protection and are shining with His light. (Some Answered Questions, p.152)

ANSWER 2

Clarification of the Baha'i Faith teachings of the station of Jesus (and Moses, et al.):

Were any of the all-embracing Manifestations of God to declare: "I am God!" He verily speaketh the truth, and no doubt attacheth thereto. For it hath been repeatedly demonstrated that through their Revelation, their attributes and names, the Revelation of God, His name and His attributes, are made manifest in the world... And were any of them to voice the utterance: "I am the Messenger of God," He also speaketh the truth, the indubitable truth... For they are all but one person, one soul, one spirit, one being, one revelation. They are all the manifestation of the "Beginning" and the "End," the "First" and the "Last," the "Seen" and "Hidden" -- all of which pertain to Him Who is the innermost Spirit of Spirits and eternal Essence of Essences. And were they to say: "We are the servants of God," this also is a manifest and indisputable fact. For they have been made manifest in the uttermost state of servitude, a servitude the like of which no man can possibly attain.

(Baha'u'llah, "The Kitab-i-Iqan" [Book of Certitude], p. 178)

Answer 2

The Baha'i don't worship Christ, per se, they acknowledge him as a great prophet of the message of God, much in the same way as Islam recognizes Christ.